//out:../css/
*{
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
    font-family: 'pingfang sc' 'source han sans cn' 'microsoft yahei' monospace;
}

main{
    padding: 0 10vw;
    background-color: #FF8787;

    .introduce{
        overflow: hidden;
        padding: 100px 0;
        h3{
            text-align: center;
            font-size: 30px;
        }
    }

    .banner{
        width: 80vw;
        height: 500px;
        overflow: hidden;
        position: relative;

        .img-box{
            position: absolute;
            display: flex;
            top: 0%;
            left: 0%;
            
            li{
                height: 500px;
                width: 80vw;
                flex-shrink: 0;

                img{
                    width: 100%;
                    height: 100%;
                    object-fit: cover;
                    object-position: center;
                }
            }
        }

        .left-btn{
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 50px;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;

            &:hover{
                background-color: rgba(255, 255, 255, 0.6);
                svg{
                    opacity: 1;
                }
            }

            svg{
                height: 40px;
                width: 40px;
                fill: #ff8787;
                opacity: 0;
            }
        }

        .right-btn{
            position: absolute;
            top: 0;
            right: 0;
            height: 100%;
            width: 50px;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;

            &:hover{
                background-color: rgba(255, 255, 255, 0.6);

                svg{
                    opacity: 1;
                }
            }

            svg{
                height: 40px;
                width: 40px;
                fill: #ff8787;
                opacity: 0;
            }
        }
    }
}